Uusikaupunki Sea Temperature

Looking to find out what the sea water temperature in Uusikaupunki is for today and the next few days? Below are data and charts that will give you information about sea temperatures in Uusikaupunki and nearby locations.

Water temperature in Uusikaupunki right now

Below is the current sea temperature for Uusikaupunki, Finland on January 10, 2026.

Today

Yesterday

A week ago

Water at this temperature is freezing cold, can cause pain and takes your breath away. Unless you are very experienced and are under strict supervision, swimming in this water for more than a few minutes can be very dangerous. Be careful, stay safe, and enjoy the rush of endorphins and exhileration from a brief cold water swim.

The average sea temperature for Uusikaupunki on January 10 over the last 10 years is 2.41° C (36.33° F), with a low temperature of -0.33° C (31.41° F) and a high of 4.1° C (39.38° F).

Analysis and forecast for Uusikaupunki water temperatures

The water temperature in Uusikaupunki today is the same as the average temperature of 2.41° C (36.33° F) and the temperature on this day last year was 2.41° C (36.33° F).

The chart and table below shows the change in water temperature in Uusikaupunki over the last 30 days:

DateTemperature (Celsius)Temperature (Fahrenheit)
January 102.41° C36.33° F
January 92.47° C36.44° F
January 82.54° C36.58° F
January 72.61° C36.7° F
January 62.44° C36.4° F
January 52.49° C36.49° F
January 42.62° C36.71° F
January 32.7° C36.86° F
January 22.92° C37.27° F
January 13.05° C37.48° F
December 313.11° C37.59° F
December 303.15° C37.67° F
December 293.18° C37.73° F
December 283.23° C37.82° F
December 273.31° C37.96° F
December 263.4° C38.13° F
December 253.45° C38.22° F
December 243.51° C38.32° F
December 233.55° C38.39° F
December 223.64° C38.55° F
December 213.8° C38.84° F
December 203.89° C38.99° F
December 193.92° C39.06° F
December 183.87° C38.97° F
December 173.79° C38.83° F
December 163.77° C38.78° F
December 153.92° C39.06° F
December 144.24° C39.64° F
December 134.45° C40° F
December 124.5° C40.11° F

The actual nearshore temperatures may vary by several degrees and this can also be heavily affected by weather. Strong winds can cause cold, deep waters to replace the surface waters that had been warmed by the sun, and heavy rain can also reduce the temperature of the sea surface temperature as well.

Water temperature in Uusikaupunki by month

The chart below shows the monthly average water temperature in Uusikaupunki.

For more detailed information on how the sea temperature in Uusikaupunki changes for each month of the year, choose from the months below.

Uusikaupunki map and nearby water temperatures

Uusikaupunki sea temperature map

Locations near Uusikaupunki

Why measure sea surface temperatures (SST) in Uusikaupunki?

The ocean covers about 71% of the Earth's surface, and scientists record the sea surface temperature (SST) of locations such as Uusikaupunki because they want to understand and learn how the ocean communicates with the atmosphere of Earth.

SST is one measure that provides information on the global climate, and it can be used to predict the weather in Uusikaupunki as well as atmospheric model simulations and to study marine ecosystems in the area.

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Uusikaupunki comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.